WIHA Insulated Socket: 3/8 in Drive Size, 21 mm Socket Size, 1 1/8 in Overall Lg
The WIHA Insulated Socket is a 3/8" Drive Metric Insulated Hand Socket (MPN 31521) with a 21 mm socket size, 12-point configuration, and 1 1/8 in overall length. It features a Chrome finish and is Not Tether Capable.
SKU 3G-OTH-407703
Local availability & support
- Delivery
- Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
- Payment
- Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.
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Product Description
The WIHA Insulated Socket is a 3/8" Drive Metric Insulated Hand Socket (MPN 31521) with a 21 mm socket size, 12-point configuration, and 1 1/8 in overall length. It features a Chrome finish and is Not Tether Capable.
Frequently Asked Questions
What is the WIHA Insulated Socket used for?
The WIHA Insulated Socket is used for safely tightening or loosening fasteners on live electrical equipment up to 1000 V AC. It is designed for electricians and maintenance technicians working on energized panels, motors, and switchgear where arc-flash protection is required.
What are the specifications of the WIHA Insulated Socket 31521?
The WIHA Insulated Socket (MPN 31521) has a 3/8 in drive size, 21 mm socket size, 12-point standard configuration, and 1 1/8 in overall length. It features a Chrome finish and is Not Tether Capable. This metric socket is part of WIHA's insulated hand tool line.
Where to buy WIHA Insulated Socket 31521 worldwide?
3G Electric supplies the WIHA Insulated Socket 31521 worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time. We source and deliver this WIHA tool to any country.
How to select the correct WIHA insulated socket size?
To select the correct WIHA insulated socket, match the drive size (3/8 in) to your ratchet, and the socket size (21 mm) to the fastener hex. Ensure the socket is rated for live work (IEC 60900). For metric fasteners, use the 21 mm size; for inch fasteners, choose the corresponding inch size.
Used in
Common applications for WIHAWIHA Products
3G Electric supplies WIHA 3/8" drive metric insulated hand sockets. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
